Processing control commands:
> found -1 0.8.13-5
Bug #95 [aptitude] aptitude: Please add support for dpkg frontend lock
Bug #940961 [aptitude] aptitude: upgrade of apt is not smooth
Marked as found in versions aptitude/0.8.13-5.
Marked as found in versions aptitude/0.8.13-5.
--
95: https
Control: found -1 0.8.13-5
Just to say that this still occurs.
The error message is now
[...]
Setting up apt (2.6.1) ...
dpkg: error: dpkg frontend lock was locked by another process with pid 4191235
Note: removing the lock file is always wrong, can damage the locked area
and the entire system.